Question about Toshiba 51H84 51" Rear Projection HDTV-Ready Television

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Toshiba TN55X81 One of my circuit boards is cracked, I need a new or functioning used one. does anyone know where I can get used parts for my TV?

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  • Dennis Devens Jul 24, 2007

    The TV model number is TN55X81

  • Dennis Devens Jul 25, 2007

    The model is TN55X81... thanks.

  • Dennis Devens Nov 06, 2007

    Would the power board be interchangeable with that of a
    TP55F80 Toshiba?

  • Glocknor Dec 23, 2007

    I also have a Toshiba TN55X81 with what I thinks is a convergence problem. I get some double imaging in a semi-circle confirguration at the bottom of the screen. I would be willing to try replacing the board myself if someone could give me an idea which board my problem most likely originates from. The TV is only 6 years old and has been great up until this issue. I've seen some of the repair quotes for a housecall and I'm seeing $ 500-$600 estimates - not sure if it would be worth that kind of investment - please advise.

  • Monkey39 Dec 24, 2007

    My TN55X81 suddenly is out of convergence easily 2"

  • auggiepr Jul 11, 2008

    red and blue colors are not aligning

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What's the model number, the TN55X81, or the 51H84?

Posted on Jul 24, 2007

  • Anonymous Jul 25, 2007

    Whay board is bad? PTS electronics have a lot of boards available for this set. Call 10800-844-7871 and ask them about the board you need, Here is a list of boards available for your set from PTS.

    Digital Convergence Board TN55X81 23783434 AVA

    CRT Drive Blue TN55X81 23783427 SNA

    CRT Drive Green TN55X81 23783426 SNA

    Power Supply TN55X81 23783608 AVA

    Convergence Out TN55X81 23783607 AVA

    Maicon TN55X81 23783629 AVA

    Signal Board TN55X81 23783605 AVA

    Digital Convergence Board TN55X81 23783609 AVA

    Maicon TN55X81 23783629 AVA

    Digital Convergence TN55X81 23783609 AVA

    Power Supply TN55X81 23783608 AVA

    Convergence Out TN55X81 23783607 AVA

    Signal Board TN55X81 23783605 AVA

    Digital Convergence TN55X81 23783434 AVA

    CRT Drive B TN55X81 23783427 SNA
    CRT Drive G TN55X81 23783426 SNA
    Deflection Board TN55X81 23783420 AVA
    --------------------------------------------------------------------------------

  • Anonymous Nov 06, 2007

    I am really not sure. Maybe call up ptscorp and ask them of the compadability.

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Hi there,
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Posted on Jan 02, 2017

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1 Answer

I am looking to sell my internal boards of my Viewsinic N4280P-1M TV. It suffered a cracked screen due to my 2yr old throwing the remote at it, but everything works great. Do you know where I might...


Hi Christopher, where are you located? I have the same TV and am looking for the base stand and original remote if you decide to part it out.

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MY FLAT SCREEN WAS WHACKED WITH THE Wii REMOTE, NO MAR KS ON EXTERIOR, BUT SUPPOSEDLY THE SCREEN NEEDS REPLACED, HOW MUCH WOULD COST OF THIS BE, WOULD I BE BETTER OFF THROWING TV AWAY?


If your screen shows symptoms like those seen in the images at the following links then your LCD display panel is permanently damaged:

http://www.gantonit.co.uk/image/broken-lcd-screen.jpg


http://www.edwud.com/photos/cracked_broken_lcd_monitor_screen.jpg


http://squarehe.com/images/0604/cracked-screen.jpg


The cost of replacing a damaged LCD display panel in a modern flat screen TV is almost always about the same as buying a whole new TV. However since all the internal circuit boards (Power Supply board, Main board, LCD Controller board, Inverter board) are likely undamaged and still functional, there is still some significant value left in the set which could be salvaged. Depending on the exact model of the TV, each of the working circuit boards inside can be worth up to $50 each on Ebay.

If you are going to get a new TV, I would recommend buying a new one of the exact same model. That way if you ever have any problems with the new set down the road after the warranty expires, you will still have a bunch of perfectly good spare parts on hand to help you fix it.

Good luck, I hope that was helpful.

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My tv had a Wii accient. The screen is cracked now just need to replace the screen.


Not possible to buy a tv LCD screen panel as a refurbish parts by any body else.Except buy it from LG tv corporation themselves.The tv LCD screen panel are 90% important to the tv functions and the cost.Replacing the tv LCD screen panel will cost the same as a new tv.Sorry it is time to buy a new tv.The tv with a damages LCD screen or broken LCD screen panel now only can used as a salvages tv for it electronic PCB boards for other tvs to used as spare parts that it.

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It's probably a write-off. The circuit board inside has been cracked so that some of the copper traces that connect parts have broken. This commonly happens around the area of the horizontal output transformer, which is heavy. The shock of the fall causes the transformer to bounce and breaks the board. Other areas too may have been damaged because of flexing. And worst, the picture tube can be damaged in a fall, so it either doesn't work at all or shows permanently distorted colors.

It's tough to find anyone willing to repair a set that's fallen. Many circuit board tracks are very narrow and hard to repair. Then it's difficult to know if all the damage has been found and repaired, so even if the set starts working a technician doesn't know if something else won't go wrong. And then there's that bad tube possibility; no technician likes to spend lots of time fixing a broken board only to find the set then needs a new tube. Trust me, this has happened to me several times during my career in TV shops.

Your best bet is to use this as an excuse to buy a new LCD or plasma TV. 40-inch models, a good size match for a 32-inch CRT (tube) model, are reasonably priced.

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My TV only displays a thin horizontal line in the center of the screen when I turn it on. Audio is fine, picture returns to normal after a while and it helps to give it a smack on the side of the cabinet.


You're describing the classic symptom of bad solder joints at the vertical output integrated circuit. This part gets quite hot while operating (which is normal - it's mounted on a metal heat sink to help dissipate that heat), and over time the heat can cause cracks in the solder joints where the part connects to the circuit board.

Whacking the set, as you've discovered, can get the joints to work for a while, but the permanent fix is to resolder those connections. It only takes a few minutes to do the soldering, and if I remember these JVC sets correctly, getting at the solder side of the circuit board is not too difficult. If you don't know how to solder and don't know anyone willing to try, a professional TV service technician could do it. It wouldn't be the most expensive of repairs, much less than the cost of a new set.

It might turn out that after repairing the solder joints so that the picture comes back, a few capacitors in the vertical circuit need to be replaced as well. This is common, so if a tech tells you some parts are required he isn't just changing them for no reason. But it shouldn't need more than 3 or 4, and they should only cost a few dollars.

Hope this helps you decide what to do. Thanks for using Fixya!

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1 Answer

Mother Board Failure Where do you get a replacement.


ebay!

Dell 32" W3202MH,W3706MH 01004-2960 Main Video Board ... - eBay

https://www.ebay.com/itm/...W3706MH...Motherboard.../162597765902?_...
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US$59.99 - ‎In stock Model: W3202MH,W3706MH. Do not match by TV Model. There are possibly several different boards for each model TV. This board has been pulled from a working cracked screen TV. Type: Main Video Board Motherboard Unit. ' eBay!

Dell Main Board 01004-2960 for W3202mh W3706mh ' eBay

https://www.ebay.com > ... > TV Boards, Parts & Components
  1. Cached
Used condition; • Returns accepted - 60 days money back or item exchange. Model: W3202MH,W3706MH. Do not match by TV Model. There are possibly several different boards for each model TV. This board has been pulled from a working cracked screen TV. Type: Main Video Board Motherboard Unit. See details.

W3202mh W3706mh ' TV Repair Parts & Components Online

https://tvrepaircomponents.com/...motherboard.../discount-w3202mh-w3706mh__part_... Get the best deals on Part in our clearance section in addition to deals on motherboard board, board video motherboard, main video motherboard, main unit, un.

Dell TV Main Board ' eBay

https://www.ebay.ca > ... > TV Boards, Parts & Components > Dell TV Main Board
  1. Cached
Dell 32" W3202MH,W3706MH 01004-2960 Main Video Board Motherboard Unit. Model: W3202MH,W3706MH. Type: Main Video Board Motherboard Unit. Do not match by TV Model. There are possibly several different boards for each model TV. This board has been pulled from a working cracked screen TV. C $74.81.

DELL 37" W3706MC 01004-3190 Main Video Board Motherboard Unit

https://www.ebay.ca > ... > TV, Video & Audio Parts > TV Boards, Parts & Components
  1. Cached
SKU: 01004-3190. Brand: DELL; Condition: Used; Notes: Please be sure that the BOARD Part Number and picture on your motherboard is EXACTLY as shown above. Do not match by TV Model. There are possibly several different boards for each model TV. This board has been pulled from a working cracked screen TV.

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Take your board to the local TV repair shop. They will be able to replace the individual micro switches and save you a small fortune replacing the whole control board.

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1 Answer

Circuit board


You have to call RCA directy to find a parts rep for your area. Depending on the board, and the where the break is, sometimes a very skilled tech can repair the board. If there are surface mount components on the broken part of the board, then most likely it is not serviceable.

When calling for the price of the board, you will need to have the part numbers for the board, and the model and serial number of the set.

Sometimes, there are EPROM's involved with these boards. They have to be programmed and set up for the particular set, because of necessary calibrations. There are some adjustments that are unique to the particular set. For this, you will need to have this done by an RCA authorized service tech.

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it is call an video module circuit you need to mention the part number of the module and the model of the tv good luck.

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